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A 06V 785-nW Multimodal Sensor Interface IC for Ozone Pollutant Sensing and Corr
0.6V 785nW多模态传感器接口IC，用于臭氧污染物监测和心血管疾病联合监测。
65nm CMOS, 0.6V, 785nW
传感器接口臭氧监测心血管疾病低功耗多模态
▸混合直流偏移电流消除技术（DCOC）
▸4MΩ增益调节级联跨阻放大器（RGC-TIA）
▸自适应架构实现低电压臭氧传感
Abstract
In this article, we present the design and analysis
of a 785-nW multimodal sensor interface IC for ozone pollu-
tant sensing and correlated cardiovascular disease monitoring
based on electrocardiography (ECG) and photoplethysmography
(PPG). The proposed hybrid dc offset current cancellation
(DCOC) along with a 4-M gain-regulated cascode transim-
pedance amplifier (RGC-TIA) enable PPG readout power reduc-
tion by 37 ×, compared with the state-of-the-art PPG sensor
interfaces. The ozone sensing c